/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineStoreInterfaceV2.h
Query for available store categories. Delegate callback is guaranteed.
void QueryCategories ( const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & UserId, const [FOnQueryOnlineStoreCategoriesComplete](API\Plugins\OnlineSubsystem\Interfaces\FOnQueryOnlineStoreCategoriesCom-) & Delegate )